Section 301 Tariffs on China: 2026 Guide for Importers

What Are Section 301 Tariffs?

Section 301 of the Trade Act of 1974 gives the US Trade Representative (USTR) authority to impose tariffs on goods from countries engaged in unfair trade practices. Since 2018, the US has used Section 301 to levy additional tariffs on Chinese imports in response to intellectual property theft, forced technology transfer, and other trade-distorting practices. These tariffs are assessed on top of the normal MFN (Most Favored Nation) duty rates already applied to Chinese goods — meaning importers can face effective duty rates of 30-50% or more on affected products.

As of 2026, Section 301 tariffs remain one of the most significant cost factors for US importers sourcing from China. Despite multiple rounds of trade negotiations, the core tariff structure remains intact, with additional tariffs imposed in 2024-2025 on strategic sectors including semiconductors, electric vehicles, batteries, solar cells, steel, aluminum, and critical minerals. Understanding which of your products are affected — and at what rate — is essential for accurate landed cost calculations and supply chain decisions.

The Four Product Lists and Their Current Rates

Section 301 tariffs were implemented in four tranches, each covering a different set of HTS codes. The tariff rate and product scope differ by list, and the lists have been modified multiple times through exclusions, reinstatements, and rate adjustments. Here is the current state of each list as of early 2026.

1. List 1 (effective July 2018): 25% additional tariff on approximately $34 billion worth of Chinese imports. Covers 818 HTS subheadings focused on industrial machinery, nuclear reactors, electrical machinery, optical and medical instruments, and aircraft parts. These tariffs have remained at 25% without interruption.
2. List 2 (effective August 2018): 25% additional tariff on approximately $16 billion worth of Chinese imports. Covers 279 HTS subheadings including semiconductors, chemicals, plastics, motorcycles, and railway equipment. Originally imposed at 25% and maintained at that rate.
3. List 3 (effective September 2018, raised May 2019): 25% additional tariff on approximately $200 billion worth of Chinese imports. Originally imposed at 10% and raised to 25%. This is the broadest list, covering thousands of HTS subheadings across nearly every product category — furniture, textiles, building materials, consumer electronics, food products, and more.
4. List 4A (effective September 2019): 7.5% additional tariff on approximately $120 billion worth of Chinese imports. Covers consumer-facing products including apparel, footwear, consumer electronics, and household goods. The rate was reduced from the initially announced 15% as part of the Phase One trade agreement and has remained at 7.5%.

How to Check If Your Product Is Affected

Determining whether your product is subject to Section 301 tariffs requires matching its HTS classification against the published tariff lists. This is not always straightforward because the lists reference 8-digit HTS subheadings, and a single subheading may include products that are covered and products that are not (due to exclusions). Here is a systematic approach.

1. Confirm your HTS classification: Before checking the 301 lists, ensure your product has the correct 10-digit HTS code. A misclassification could cause you to miss applicable 301 tariffs — or pay them unnecessarily.
2. Check USTR annex lists: The USTR publishes the definitive product lists as Federal Register notices. Cross-reference your 8-digit HTS subheading against the lists on the USTR website (ustr.gov/issue-areas/enforcement/section-301-investigations).
3. Verify exclusions: Some products within affected subheadings have been granted temporary or permanent exclusions. Check the USTR exclusion notices and the CBP CROSS database for active exclusions that may apply to your specific product description.
4. Check Chapter 99 HTS codes: Section 301 tariffs are administered through Chapter 99 of the HTS (temporary legislation). Your entry summary must include the applicable 9903 HTS code as a secondary classification. For example, 9903.88.01 covers List 1 products at 25%.
5. Use AI classification tools: Modern classification platforms like TariffPro automatically flag when an HTS code falls within Section 301 lists and identify the applicable Chapter 99 code, eliminating the manual cross-referencing process.

The Exclusion Process

USTR has periodically opened exclusion request processes that allow importers to petition for relief from Section 301 tariffs on specific products. Exclusions are granted based on several criteria: whether the product is available only from China, whether the tariffs cause severe economic harm to the petitioner, and whether the product is strategically important to Chinese industrial policy goals. Granted exclusions typically apply retroactively to the date of the original tariff imposition and have specific expiration dates.

The exclusion process has been controversial and unpredictable. Thousands of exclusion requests have been filed, and approval rates have varied widely depending on the product list and review round. Importers who received exclusions in earlier rounds must monitor expiration dates closely, as USTR has allowed many exclusions to lapse without renewal. Currently, only a limited number of product-specific exclusions remain active, and no new general exclusion process has been announced for 2026.

Mitigation Strategies for Importers

While you cannot avoid Section 301 tariffs on covered products imported from China, there are legitimate strategies to reduce their impact on your business. Each strategy has specific requirements and limitations, so consult with a trade compliance professional before implementing any of these approaches.

• Supply chain diversification: Sourcing from countries other than China eliminates Section 301 exposure entirely. Vietnam, India, Mexico, and Thailand have become major alternative sourcing destinations. Note that CBP actively investigates transshipment — goods manufactured in China and routed through third countries to evade tariffs. The goods must undergo substantial transformation in the alternative country to qualify for a different country of origin.
• Foreign Trade Zones (FTZ): Importing goods through an FTZ can provide duty deferral and, in some cases, duty reduction if the goods are manufactured within the zone and the finished product has a lower duty rate than the component inputs (inverted tariff benefit). However, Section 301 tariffs generally follow the goods through FTZ processing.
• Tariff engineering: Modifying a product so that it classifies under a different HTS subheading that is not on the Section 301 lists is legal when the modification is genuine and commercially meaningful. This requires careful analysis of the tariff classification boundaries and the physical characteristics that drive classification.
• First Sale valuation: If your supply chain involves multiple sales (e.g., manufacturer to middleman to US importer), using the first sale price rather than the transaction value to the importer as the customs value can reduce the dutiable base on which Section 301 tariffs are calculated. CBP has specific documentation requirements for first sale eligibility.
• Classification accuracy review: Ensuring your HTS codes are correct can reveal cases where products were classified under a covered subheading when they actually belong in an uncovered subheading — or vice versa. An AI-assisted classification audit can quickly scan your entire product catalog for these opportunities.

How AI Classification Helps Navigate Section 301

Section 301 tariffs have made accurate HTS classification more important than ever. A classification error on a product subject to 25% Section 301 tariffs means not just the wrong MFN duty rate — it means a 25% surcharge either missed or overpaid. AI-powered classification tools like TariffPro automatically cross-reference classifications against the current Section 301 product lists, flag covered products, identify the applicable Chapter 99 codes, and calculate the total effective duty rate including all applicable surcharges. This eliminates the manual cross-referencing that is prone to error and gives importers real-time visibility into their true Section 301 exposure across their entire product portfolio.

“Section 301 tariffs have fundamentally changed the economics of US-China trade. The importers who thrive in this environment are the ones who have invested in classification accuracy, supply chain flexibility, and data-driven compliance — not the ones who hope the tariffs will go away.”

— Camtom Team